Prevent Refresh on anchor tag Click

i want load the page using anchor tag like this go from any content page. i want to prevent page refresh on anchor tag Click but at same time it should load Different page. example below here is content page

<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">
    <a href="WebForm2.aspx">go</a>
</asp:Content>

and on master Page

 <asp:UpdatePanel ID="UpdatePanel1" runat="server">
        <ContentTemplate>
            <asp:ContentPlaceHolder ID="ContentPlaceHolder1" runat="server">
            </asp:ContentPlaceHolder>
        </ContentTemplate>
    </asp:UpdatePanel>